<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<center>
  <img src="img.png" alt=""width="320" height="150">
  <br>
  <input type="text" size="32">
  <input type="button"value="百度一下">
  <br>
  <a href="/reg.html">用户注册</a>
    <a href="/login.html">用户登录</a>
  <a href="/classtable.html">课程表</a>
</center>
</body>
</html>